修改root后，并且reload，访问的还是之前默认的页面呢

老师，我这是在阿里云服务器中运行的nginx，访问IP显示这个页面是正常的吗？

同学你好，显示这个页面是错误，根据同学反馈的ip老师这边是可以正确访问的。如下所示：同学访问错误可能是浏览器的问题，建议同学换一个浏览器试一下。

祝学习愉快！

现在访问IP正常显示welcome页面了

但是访问之前写的test.html，显示404，这是什么原因呢？

test.html在/data/wwwroot/default目录下

配置文件：

user www www;
worker_processes auto;

error_log /data/wwwlogs/error_nginx.log crit;
pid /var/run/nginx.pid;
worker_rlimit_nofile 51200;

events {
  use epoll;
  worker_connections 51200;
  multi_accept on;
}
http {
  include mime.types;
  default_type application/octet-stream;
  server_names_hash_bucket_size 128;
  client_header_buffer_size 32k;
  large_client_header_buffers 4 32k;
  client_max_body_size 1024m;
  client_body_buffer_size 10m;
  sendfile on;
  tcp_nopush on;
  keepalive_timeout 120;
  server_tokens off;
  tcp_nodelay on;

  fastcgi_connect_timeout 300;
  fastcgi_send_timeout 300;
  fastcgi_read_timeout 300;
  fastcgi_buffer_size 64k;
  fastcgi_buffers 4 64k;
  fastcgi_busy_buffers_size 128k;
  fastcgi_temp_file_write_size 128k;
  fastcgi_intercept_errors on;

  #Gzip Compression
  gzip on;
  gzip_buffers 16 8k;
  gzip_comp_level 6;
  gzip_http_version 1.1;
  gzip_min_length 256;
  gzip_proxied any;
  gzip_vary on;
  gzip_types
    text/xml application/xml application/atom+xml application/rss+xml application/xhtml+xml image/svg+xml
    text/javascript application/javascript application/x-javascript
    text/x-json application/json application/x-web-app-manifest+json
    text/css text/plain text/x-component
    font/opentype application/x-font-ttf application/vnd.ms-fontobject
    image/x-icon;
  gzip_disable "MSIE [1-6]\.(?!.*SV1)";

  ##Brotli Compression
  #brotli on;
  #brotli_comp_level 6;
  #brotli_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript image/svg+xml;

  ##If you have a lot of static files to serve through Nginx then caching of the files' metadata (not the actual files' contents) can save some latency.
  #open_file_cache max=1000 inactive=20s;
  #open_file_cache_valid 30s;
  #open_file_cache_min_uses 2;
  #open_file_cache_errors on;

  log_format json escape=json '{"@timestamp":"$time_iso8601",'
                      '"server_addr":"$server_addr",'
                      '"remote_addr":"$remote_addr",'
                      '"scheme":"$scheme",'
                      '"request_method":"$request_method",'
                      '"request_uri": "$request_uri",'
                      '"request_length": "$request_length",'
                      '"uri": "$uri", '
                      '"request_time":$request_time,'
                      '"body_bytes_sent":$body_bytes_sent,'
                      '"bytes_sent":$bytes_sent,'
                      '"status":"$status",'
                      '"upstream_time":"$upstream_response_time",'
                      '"upstream_host":"$upstream_addr",'
                      '"upstream_status":"$upstream_status",'
                      '"host":"$host",'
                      '"http_referer":"$http_referer",'
                      '"http_user_agent":"$http_user_agent"'
                      '}';


######################## default ############################
  server {
    listen 80;
    server_name _;
    access_log /data/wwwlogs/access_nginx.log combined;
    root /data/wwwroot/default;
    index index.html index.htm index.jsp;
    #error_page 404 /404.html;
    #error_page 502 /502.html;
    location /nginx_status {
      stub_status on;
      access_log off;
      allow 127.0.0.1;
      deny all;
    }
    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|flv|mp4|ico)$ {
      expires 30d;
      access_log off;
    }
    location ~ .*\.(js|css)?$ {
      expires 7d;
      access_log off;
    }
    location ~ {
      proxy_pass http://127.0.0.1:8080;
      include proxy.conf;
    }
    location ~ ^/(\.user.ini|\.ht|\.git|\.svn|\.project|LICENSE|README.md) {
      deny all;
    }
    location /.well-known {
      allow all;
    }
  }
########################## vhost #############################
  include vhost/*.conf;